If the radius of the sphere is is .25 then I multiply the clock by 4
because  .25 is 1/4 of 1! This works (I think I'm answering my own
question), but I still don't know how to reproduce the algorythm that
synchronizes the radius of the sphere with the distance traveled.


object {sphere {<0,0,0>0.25
        texture {pigment {checker color White color <.1, .6, .5>
/*scale 0.25*/}
           finish { ambient 0 diffuse 1 phong 1 phong_size 80}}
                 rotate <0, 0, -clock*360*4>
      translate <-pi, 0.25, 0>
      translate <2*pi*clock, 0, 0>}
       
            }

Post a reply to this message